This yuppie romance finds itself gate-crashed by a rogue lesbian element and is therefore briefly interesting. One minute Piper Perabo and Matthew Goode are flouncing around their Primrose Hill pad like the most irritating couple this side of Love, Actually. The next, Lena Headey's tattooed florist has fluttered into view, the two women are grappling atop the roses and for a few tantalising scenes you suspect that the whole film is on the brink of suffering a mammoth nervous breakdown that will drag its smirking protagonists off in a wild new direction.

Sadly, it never happens. The rogue intruder is hastily ushered into the party and from here it's back to Brit-com business as usual, right down to the outbursts of posh swearing and the fraught, last-minute dash through the London traffic.